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Youngest player to appear in a football (soccer) FIFA World Cup Final

Youngest player to appear in a football (soccer) FIFA World Cup Final
Who
Pelé
What
17:249 year(s):day(s)
Where
Sweden (Solna)
When
29 June 1958

The youngest player to appear in a FIFA World Cup Final is Pelé (Brazil), aged 17 years 249 days vs Sweden at the Råsunda Stadium, Solna, Sweden, on 29 June 1958.

Pelé also scored in this match therefore becoming the youngest scorer in a World Cup Final, incidentally the record for the Oldest scorer in a final was also broken in this game when Nils Liedholm opened the scoring for Sweden aged 35 yrs 264 days.